Nate the Great doesn't especially want to go to a birthday party for Annie's ferocious dog, Fang. But he can't resist a mystery: and when Annie loses her house key and can't get inside to set up the party, Nate and his trusty dog, Sludge, are hot on the trail!

Nate the Great loves his mother’s Monster Cookies. But now her Monster Cookie recipe is missing! Nate and his dog, Sludge, get to work. They find lots of clues. But which ones count? Will Nate ever eat those wonderful cookies again? 

Nate the Great, super sleuth, has his work cut out for him when Rosamond loses his birthday present. He and his faithful dog, Sludge, must face snow, ice, and ferocious-looking Fang, Annie's dog, to solve the case. Nate will have a hard time finding the missing present when Rosamond won't tell him what it is.

Nate the Great has his first night case! "Detective work is not fun and games," Nate explains. "Detective work is dirty garbage cans instead of clean beds. Detective work is banana peels, dishrags, milk cartons, floor sweepings, cigar ashes, fleas, and me..."

Nate, the great detective, depends on his dog, Sludge, to help him solve all of his cases. But Sludge can't help him this time - Sludge is lost! Lost inside a big department store on a rainy day. Nate frantically searches for his best friend and trusted helper. Salespeople have spotted a wet, slippery, sloppy dog running about. Is Sludge hiding from them? Nate looks high and low, and in places he'd rather not look at all. But every clue leads to a dead end ... until Nate realizes that Sludge can help him with this case!

Annie's dog is unhappy. When Fang is unhappy, everyone is unhappy. Especially Nate the Great. So Nate agrees to sniff out Fang's mysteriously missing Christmas mail. It's cold and snowy. But Nate the Great and his dog, Sludge, will try to solve this holiday case in time for Fang to have a crunchy, munchy Christmas.

Nate the Great is about to enter his dog, Sludge, in the smartest pet contest. But when the prize disappears, it looks as if the contest will flop. It's a tough case for Nate and Sludge as they search for clues leading to the missing prize. In more ways than one, it's a very fishy business. Can Nate and Sludge find the prize in time?

Can a detective get a day off? Nate the Great and his dog, Sludge, want to take a break from solving cases. So they hide out in the woods. But soon they hear familiar voices shouting, “Nate the Great, where are you?” There are many mysteries to solve!

It is Halloween night and all the kids are dressed in scary and funny costumes. Their Trick or Treat bags are getting heavier. Nate's good friend Rosamond needs his help. Her cat, Little Hex, is missing. Little Hex hates Halloween, so maybe he's hiding. Or is he lost? Nate and his trusty dog Sludge take the case and hunt in the night for Little Hex. They pass robots, pirates, and witches. But where will they find Little Hex?

All aboard the Owl Express! Nate, the great detective, and his dog Sludge, hit the rails on their latest case. Their mission: To guard an owl named Hoot. Hoot belongs to Nate's cousin, Olivia Sharp, and she thinks someone on the train might be out to get her feathered friend. But whooo? Sludge keeps an eye on the owl's cage while Nate snoops for clues. Then Hoot disappears! With many suspects to question, and many places to look, Nate knows one thing for sure - being the bodyguard to a little bird is a lot of work!

A stegosaurus stamp belonging to Nate's friend Claude disappears, and the indomitable Nate the Great is called in on the case. At first, even Nate is stumped -- the stamp has just vanished without a trace! But with clues from the weather and his ever-faithful dog, Sludge, Nate is soon on his way to wrapping up his stickiest case yet.


From the Trade Paperback edition.

Although Nate the Great and his dog, Sludge, are on vacation, they just can't resist a new case. When his friend Claude's grocery list is lost, Nate sets out to find it before lunch. But lunch draws nearer and the list is still missing. Nate the Great is worried: his reputation is at stake. It looks as if list has vanished - unless Rosamond's strange cat pancakes are somehow at the heart of the mystery

When Oliver asks his friend Nate the Great to find his lost weed, Nate can't say no. This isn' just any weed. It's a Superweed that Oliver bought from Rosamond's Adopt-A-Weed sale. First Nate must figure out where to look for the weed. Together with his trusty dog Sludge, they search for clues in the woods, the park and even the library! But is the biggest clue right under Nate's nose?

It's two o'clock in the morning when the telephone rings and Nate the Great learns that Rosamond's pillowcase is missing. She needs it now because her cat, Big Hex, likes to sleep on it. Outside it is damp, dark, and dreary, but a good (yawning) sleuth knows that the hunt must go on. Can Nate the Great find the missing piece of laundry before the sun comes up, and before his bedroom slippers wear out?

Esmeralda came up with the perfect name for Rosamond's pet concert. But she lost the pink paper where she wrote the word - and she can't remember what it is. Nate the Great and his dog, Sludge, take on the unusual case, and they are soon braving pink papers and barking, oinking, and talking pets. Will Nate and Sludge find the word in time for the show to go on?